{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-58644","assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","state":"PUBLISHED","assignerShortName":"microsoft","dateReserved":"2026-07-01T21:14:44.618Z","datePublished":"2026-07-14T17:05:37.431Z","dateUpdated":"2026-07-24T19:31:52.772Z"},"containers":{"cna":{"title":"Microsoft SharePoint Remote Code Execution Vulnerability","datePublic":"2026-07-14T14:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*","versionStartIncluding":"16.0.0","versionEndExcluding":"16.0.5556.1005"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:sharepoint_server_2019:*:*:*:*:*:*:*:*","versionStartIncluding":"16.0.0","versionEndExcluding":"16.0.10417.20153"},{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*","versionStartIncluding":"16.0.0","versionEndExcluding":"16.0.19725.20384"}]}]}],"affected":[{"vendor":"Microsoft","product":"Microsoft SharePoint Enterprise Server 2016","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"16.0.5556.1005","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft SharePoint Server 2019","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"16.0.10417.20153","versionType":"custom","status":"affected"}]},{"vendor":"Microsoft","product":"Microsoft SharePoint Server Subscription Edition","platforms":["x64-based Systems"],"versions":[{"version":"16.0.0","lessThan":"16.0.19725.20384","versionType":"custom","status":"affected"}]}],"descriptions":[{"value":"Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.","lang":"en-US"}],"problemTypes":[{"descriptions":[{"description":"CWE-502: Deserialization of Untrusted Data","lang":"en-US","type":"CWE","cweId":"CWE-502"}]}],"providerMetadata":{"orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","shortName":"microsoft","dateUpdated":"2026-07-24T19:31:52.772Z"},"references":[{"name":"Microsoft SharePoint Remote Code Execution Vulnerability","tags":["vendor-advisory","patch"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58644"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","baseSeverity":"CRITICAL","baseScore":9.8,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C"}}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-16T00:00:00+00:00","options":[{"Exploitation":"active"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-58644"}}},{"other":{"type":"kev","content":{"dateAdded":"2026-07-16","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-58644"}}}],"references":[{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-58644","tags":["government-resource"]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-17T03:56:24.064Z"},"timeline":[{"time":"2026-07-16T00:00:00.000Z","lang":"en","value":"CVE-2026-58644 added to CISA KEV"}]}]}}